Door-lock.



'H. FERGUSON.

I DOOR LOCK.

APPHCATION FILED JULY3| 19H.

1,187,294. I Patentdlunelii 1916.

nivirnn s'rirrns PATENT orrron.

HOWARD FERGUSON, or WRAY, COLORADO.

noon-Lock.

To all whom it may concern:

Be it known that I, HOWARD FERGUSON, a citizen of the United States, residing at WVray, in the county of Yuma and State of Colorado, have invented new and useful Improvements in Door-Locks, of which the following is a specification.

My invention relates to door locks and provides means whereby a door or the like may be securely locked against movement.

Another object of my invention is the provision of means whereby a door or the like may be locked against movement and when pressure is applied to the door it Will be locked still more securely.

Another object is to provide a device which is simple, efiicient and inexpensive, and so constructed as to assure its durability.

With the foregoing and other objects in view, my invention relates to such details of construction and in the arrangement and combination of parts as will be hereinafter more fully described in the annexed specification and specifically pointed out in the appended claim.

In describing my invention in detail reference will be had to the accompanying drawings wherein like characters denote like or corresponding parts throughout the several views, and in which Figure 1 is a rear elevation of my invention showing the same in a locked position. Fig. 2 is a transverse sectional view of a member and door frame showing my invention in elevation. Fig. 3 is a perspective view of a locking member. Fig. 4 is a perspective view of a detail.

In carrying my invention into practice I provide a member 1 preferably constructed of thin metal, one end 2 being slightly larger than the other. I also provide a substantially L shaped member 3 which has a slot 4 formed near one end thereof for the reception of the smaller end of the member 1. The other end of the member 3 is bent at right angles as shown at 5 to form a locking foot, the purpose of which will subsequently appear. I also use in connection with the hereinbefore stated elements a locking member 6, one side of said member being cut away so the same may be disposed upon the edge of a door or the like more easily. One side of the member 6 is beveled as shown at 7 so as to form a wedge when it engages Specification of Jletters Iatent. PatentedJ 119 13, 1916,

' Application fi1ed July 3, 1911. Serial No. 636,589.

a. door or the like. Formed through the member 6, and preferably near the center thereof is a slot 8, which slot'is adapted Also cut in the to receive the member 1. member 6 18 an aperture 9 which-receives a set screw 10.

In the operation of my device, the same is first arranged in a vertical position with respect to the door frame so that the member 3 may be readily inserted through the usual elongated latch opening thereof. After this has been accomplished, the shank may be moved into the position shown in Fig. 2, so as to bring the locking foot of the member 3 into operative relation to the door frame, whereby the said locking foot will prevent accidental removal or displacement of the device. After the shank has been arranged in this position, the member 6 may be positioned thereon in an obvious manner. The set screw is then seated in the aperture 9 and screwed until it engages the member 1 through the slot 8 whereby the back-movement of the member 6 will be limited. It will be seen that by having one end of the member 1 larger than the other that when pressure is applied to the door, the member 6 will tend to move backward on the member 1 whereby a wedging action will be generated and the more pressure that is applied the more the member 6 will wedge.

It should be noted by having the set screw engage the upper or lower edge of the strip 1 instead of the side face of the same that this look 6 will be held in the desired posi tion a great deal more steadily since when it is attempted to open the door any tendency toward side play will not tend to force the set screw outwardly thus breaking the thread. It should be further noted that by having the block provided with the cutout end portions there is provided the abutment shoulder 7 and overhanging lip which engages the head as shown in Fig. 2. Therefore the outer portion of the strip 1 which extends beyond the door will be braced against any side play caused by attempting to open the door. Of course if the door jamb is not provided with the bead the lock can be reversed in its position thus bringing the set screw to engage the lower edge of the strip 2 and with the unbroken longitudinal face engaging the door and door frame.

ing device comprising a shank to be stamped from a strip material of a uniform thickness throughout, said shank having its upper and lower edges cut at an angle to provide Wecging faces, an anchoring member fixed at one end of said shank, said anchoring member being substantially L-shaped When viewed in plan, said anchoring member adapted to be inserted through said closing plate when said shank is in a. vertical position With respect to said door frame, whereby by giving said shank a quarter turn it may be held against removal, .a relatively thick block provided With a receiving slot, said receiving slot being of adimension whereby its sides Will fit snugly about the sides of said shank, said block having a broad faced portion to engage with the door and a similar portion to engage with the door frame, said block being further provided With a receiving aperture to extend diagonally With respect to said slot and a set screw to be received in said aperture having its axis at an acute angle to the plane of said shank for frictionally anchoring said block to the shank, as and for the purpose specifled.

HOWARD FERGUSON. WVitnesses W. D. MCGINNIS, E. B. BORLAND.

Copies of this patent may be obtained for five cents each, by addressing the "Commissioner of Patents, Washington, I). C." 

